body,html
    line-height: 1
    font-weight: 200
    font-family: 'PingFang SC','STHeitiSC-Light','Helvetical-Light',arial,san-serif


.clearfix
    display: inline-block
    &:after
        display: block
        content: "."
        display: block
        height: 0
        line-height: 0
        clear: both
        visibility: hidden

@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
    .border-1px
        &::after
            -webkit-transform scaleY(0.7)
            transform scaleY(0.7)

@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
    .border-1px
        &::after
            -webkit-transform scaleY(0.5)
            transform scaleY(0.5)
